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Old 03-16-2013, 10:34 PM   #1
MrGee OP
Training Wheels
 
Joined: Nov 2012
Location: Singapore
Oddometer: 4
Low temp thermoswitch for adv990

Hey wisdomer's,

My first post.

I purchased the lower temp thermoswitch from Ktmtwins and installed it onto my new old stock 2011 adv990(white, if it matters), reason for the change was the bike seemed to get too hot before the fan kicked in.
Scenario: Went on a short weekend trip after I had done the first service at 1k Kms. Had my wife in back and luggage including top box but wasn't overloaded and the bike was fine until I got into a small town in traffic and got the speedo cluster flashing at me telling me it was too hot. Bike didn't shut down, I switched off the engine and waited till traffic started moving and fired up and went on my way short distance to the hotel. Once at the hotel and bike cooled, I checked the coolant level and all was good, even found a high enough concrete curb to elevate the front and burp the system and no visible air bubbles appeared and it did not take any additional coolant. This trip freaked me out and it hung in the back of my mind so much so I scrapped plans for riding the next day and just stayed around the town and returned home 300+Kms the next day. At this point I was kind of put off that a brand new bike would not have enough to cool itself in tropical weather. I calmed myself by telling myself the bike was just too new and still very tight and so generating a lot of excess heat. Once fully broken in it should be fine.
Now I'm approaching the 6k Kms mark and the heat issues seemed to stabilise, never had the cluster flash at me again but of course I have added or swapped to the Ktm Twins lower temp thermoswitch. Only problem is once the fan starts, it does not stop until I'm either moving or I shut off the engine. Ie: the fan does not cycle on and off at lights or in traffic, it just comes on and stays on. I've flushed coolant, replaced with engine ice and water wetter and even elevated by crane to 3ft to burp it and still no cake. I'm beginning to think the thermoswitch is just too cold a setting for the climate here which averages 30deg C most days. Is the fan running constantly going to affect the charging system in the long run and the life of the fan as well? I'm kinda stumped.
I've also added the second fan kit by Advmachines but unfortunately they did not ship the 200degF thermoswitch which I opted and paid for(still waiting on reply from them, they were nice enough to add shipping to my country but now seem to not want to reply to emails about their short shipment, looking to end up being a PayPal dispute). The install went great and the fan works well but alas due to the switch the fans turn on but don't go off or cycle unless I get moving, even whilst in the shade with a breeze going by they won't cycle. Should I put back the original thermoswitch just so the fans will cycle on and off?
Thanks in advance for your time and advice.
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